Flat Tire: General Steps to Take Safely
A general overview of recommended steps to take when a flat tire occurs, based on road safety guidance from Transport Canada and provincial motor associations.
Flat tires can occur for many reasons, including road debris, impact with a pothole, slow leaks, or sidewall damage. The general steps below reflect common road safety guidance published by Transport Canada and provincial motor associations.
1. Stay Calm and Reduce Speed Gradually
Avoid sudden braking or sharp steering inputs. Ease off the accelerator, grip the steering wheel firmly, and allow the vehicle to slow down before steering toward the shoulder.
2. Move to a Safe Location
Pull onto a wide, level shoulder or exit the highway if possible. Turn on the hazard lights. Keep as far away from moving traffic as you can.
3. Assess the Damage at a Safe Distance
Visually inspect the tire from a safe position. Driving on a fully deflated tire for more than a short distance can damage the rim and suspension. Sidewall damage and large cuts generally cannot be repaired safely per industry guidance.
4. Choose a Safe Next Step
- If your vehicle has a spare tire and you are in a safe location, you may install it following the procedure in the vehicle owner manual and drive at the reduced speed specified for a temporary spare.
- If your vehicle is equipped with run flat tires, review the distance and speed limits in the owner manual.
- Otherwise, contact a roadside assistance provider or tow service.
5. Have the Tire Inspected
After a flat, have the tire inspected by a qualified technician. Internal damage is not always visible from the outside, and repairs must follow industry repair limits (tread area only, within specified size and position rules).